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- Doppler_Shift_Compensation abstract "When an echolocating bat approaches a target, its outgoing sounds return as echoes, which are Doppler shifted upward in frequency. In certain species of bats, which produce constant frequency (CF) echolocation calls, the bats compensate for the Doppler shift by lowering their call frequency as they approach a target. This keeps the returning echo in the same frequency range of the normal echolocation call. This dynamic frequency modulation is called the Doppler Shift Compensation (DSC), and was discovered by Hans Schnitzler in 1968.CF bats employ the DSC mechanism to maintain the echo frequency within a narrow frequency range. This narrow frequency range is referred to as the acoustic fovea. By modulating the frequency of the outgoing calls, the bats can ensure that the returning echoes stay nearly constant within this range of optimal sensitivity. Ultimately, by keeping the echoes in this optimal range, the bats can quickly ascertain certain properties (such as distance and velocity) about the target. This behavior appears to have evolved independently in several species of the Rhinolophidae and Mormoopidae families. The common features shared by bats with DSC are that they produce CF sounds, and that they have a specialized cochlea that is adapted to receiving a narrow range of frequencies with high resolution. DSC allows these bats to utilize these features to optimize the echolocation behavior.".
- Doppler_Shift_Compensation wikiPageID "34036576".
- Doppler_Shift_Compensation wikiPageRevisionID "578111129".
- Doppler_Shift_Compensation hasPhotoCollection Doppler_Shift_Compensation.
- Doppler_Shift_Compensation subject Category:Bats.
- Doppler_Shift_Compensation type Animal100015388.
- Doppler_Shift_Compensation type Bat102139199.
- Doppler_Shift_Compensation type Bats.
- Doppler_Shift_Compensation type Chordate101466257.
- Doppler_Shift_Compensation type LivingThing100004258.
- Doppler_Shift_Compensation type Mammal101861778.
- Doppler_Shift_Compensation type Object100002684.
- Doppler_Shift_Compensation type Organism100004475.
- Doppler_Shift_Compensation type PhysicalEntity100001930.
- Doppler_Shift_Compensation type Placental101886756.
- Doppler_Shift_Compensation type Vertebrate101471682.
- Doppler_Shift_Compensation type Whole100003553.
- Doppler_Shift_Compensation comment "When an echolocating bat approaches a target, its outgoing sounds return as echoes, which are Doppler shifted upward in frequency. In certain species of bats, which produce constant frequency (CF) echolocation calls, the bats compensate for the Doppler shift by lowering their call frequency as they approach a target. This keeps the returning echo in the same frequency range of the normal echolocation call.".
- Doppler_Shift_Compensation label "Doppler Shift Compensation".
- Doppler_Shift_Compensation sameAs m.0hr5j5m.
- Doppler_Shift_Compensation sameAs Q5297351.
- Doppler_Shift_Compensation sameAs Q5297351.
- Doppler_Shift_Compensation sameAs Doppler_Shift_Compensation.
- Doppler_Shift_Compensation wasDerivedFrom Doppler_Shift_Compensation?oldid=578111129.
- Doppler_Shift_Compensation isPrimaryTopicOf Doppler_Shift_Compensation.